Remote Controller: Linked via Bluetooth, when browsing Tik Tok,Facbook you can slide the video through the ring, operate the page up and down, volume up and down, play and pause, send like etc. No need to swipe the video with your fingers, free your hands. Cell Phone Camera Remote: Efficient and stable Bluetooth chip, stable Bluetooth signal transmission within 10m. You only need to long press the up and down keys of the controller to take a photo/video. Page Turning for eBook Apps:You DON'T have to swipe your finger to slide/turn page When reading on eBook app. This wireless page turner can be used to most eBook. Rechargeable Clicker Remote：Use time lasts for 14 hours from single charge and total 85 hours. Providing convenient charging cable. compatible with IPhone settings: On compatible with iPhone you have to turn on assistive touch which leaves a circle on the screen at all times then you are able to change videos on tik tok app, also You need make sure the IOS software is above V14.8. If it still doesn't work, please restart the phone. One-touch control Stay comfortable Support multiple APPs Ring shape Bluetooth connection